Small coaster I'd have said Wild Mouse at BPB prior to it getting knocked down, that thing used to chuck you about left, right, up and down and covered a very small area. Certainly my favourite coaster in the UK when it was about. Now I'd probably go with Backlot Stunt Coaster at King's Island. I was expecting a naff kids coaster as it looked small and didn't take up huge amount of space , but what happened was I massively greyed out more than any other intense coaster I'd ever down literally after the naff launch and into the helixes. You want intense helixes then this thing will tick all the boxes. I
Coasters that are disappointing for their size? Would have to go with diamondback. The thing looked incredible and was expecting it to be on par with Shambhala but instead was probably the most disapointing large coaster I'd ever been on.
Or Mystic Timbers. Again was expecting something great having been on Wodan and Wickerman which I both enjoyed. But nope just lacked any umph. Though seems I'm in a minority with that.